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  • SPRacing F3 Mini Flight Controller
  • SPRacing F3 Mini Flight Controller with two buttons
  • SPRacing F3 Mini Flight Controller Top View with Race Timing
  • SPRacing F3 Mini Flight Controller with dedicated USB
  • SPRacing F3 Mini Flight Controller Bottom View
  • SPRacing F3 Mini Flight Controller Top and Bottom view

SP Racing F3 Mini MkII Flight Controller

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Product Description

The SP Racing F3 mini Mkii represents the next generation of flight controller for your FPV racing multirotor.  After all the experience from the first generation of SP Racing boards, this UK designed flight controller includes some world first features to make this board the best option for your next multi rotor build.  Designed for FPV racing by the lead developer of cleanflight (Dominic Clifton - AKA Hydra) the F3 mini uses the latest in processor, sensor and software technologies to make it fly like its on rails with outstanding precision.

This Mk II version of the board includes a new high reliability volage regulator with 2-6S support and the balls have been removed!

Key features 

  • Jaw dropping flight performance thanks to the STM32 F3 ARM Cortex-M4 processor
  • Built in Race Timing Transponder
  • Built in 5V regulator (BEC)
  • Built in Micro SD slot to record flight data logs (SD card not included)
  • Dedicated USB port (not shared like on other flight controllers)
  • Robust though hole pin connectors for all inputs and outputs
  • Tiny and lightweight - 36x36mm in size but can be reduced to 36x24mm by removing the outer tabs
  • Two buttons that you can use to bind your receiver, reset configuration or enter bootloader mode (more functions planned)
  • Supports most R/C receivers -  SBus, SumH, SumD, Spektrum1024/2048, XBus, PPM
  • Includes built in inverter - no need to use an external inverter with your R/C receiver
  • Programmable RGB LED support
  • Oneshot ESC support
  • Battery voltage monitoring built in
  • Sonar support (sonar not included)
  • Buzzer port to enable audible warnings and notifications
  • GPS ready - with a full set of sensors (Accelerometer, Gryoscope, Compass and Barometer) the SPracing F3 mini is capable of GPS navigation (new features will be soon added to cleanflight to support this).


The SPRacingF3Mini includes a race timing transponder built into the board which lets you precisely record your FPV racing lap times.  Each board comes with a unique transponder code to identify your multirotor at a FPV race event.  These transponders are compatible with i-LAP receiver timing systems commonly used for R/C car racing.  Two LED's are included on the transponder for clockwise and anti-clockwise racing tracks.

This flight controller has built in support for a wide range of R/C receivers including Sbus, SumH, SumD, Spektrum1024/2048, XBus, PPM.  The great this here is that you don’t need to use any external inverters as the SPracing F3 mini has these built in.  Your R/C receiver is powered via your flight battery or USB to make things easy to configure.

Since most of todays multirotor ESC's do not include any BEC, its great to see the SP Racing F3 Mini includes a 5V BEC to provide 5V power to power your R/C receiver, or other accessories connected to your flight controller.

At the heart of the F3 mini is a ARM Cortex-M4 processor running at 72Mhz complemented by a Math co processor (Floating Point Unit) which makes all the mathematical flight calculations child’s play, getting more done per flight control loop.  This process is approximately 2 times faster than STM32F1 flight control boards.

Another world first for a cleanflight controller is the built in MicroSD card slot which allows you to log your flight data to an micro SD card.  With support for cards up to 32GB, you will probably be able to store every single flight you will ever fly with this board.

Other minor improvements include a dedicated USB port which is not shared by any serial ports.  The SPracing F3 mini also includes a Sonar Port, battery voltage monitoring, an I2C port and buzzer port.  All the features you would expect from a flight controller today.



The hardware was designed by the lead developer of Cleanflight to be more capable than the previous-generation STM32F1-based boards and to set the benchmark for a fully-featured STM32F3-based mini board.

  • 36x36mm board with 30.5mm mounting holes
  • Weight ~6 grams
  • STM32F303 CPU, 72Mhz inc FPU
  • MicroSD card slot (SD/SDHC, upto 32GB)
  • MPU9250 accelerometer/gyro/compass
  • BMP280 barometer (Deluxe only)
  • 5V regulator for powering receiver and small servos
  • 2 Push Buttons
  • 2 IR LEDs and unique code for race transponder
  • MicroUSB socket
  • Copper-etched Cleanflight and #RB logos
  • 1x 2pin though-holes for pin headers for Direct Connection of 2-5S Battery (25V Max)
  • 8x 3pin though-holes for pin headers for ESC/Servo connections
  • 1x 2pin though-holes for pin headers for UART3
  • 1x 6pin though-holes for pin headers for UART1 and PPM (for standard SerialRX/SBus/PPM lead)
  • 1x 3pin though-holes for pin headers for Telemetry/LED Strip
  • 1x 3pin though-holes for pin headers for Buzzer output
  • 1x 2pin though-holes for pin headers for RSSI and battery current monitoring
  • 1x 3pin though-holes for JST-ZH socket for Spektrum Satellite receivers.
  • 1x 4pin bottom mounted, recessed JST-SH socket for I2C
  • 1x 4pin bottom mounted, recessed JST-SH socket for UART2
  • 1x 4pin top mounted JST-SH socket for SWD debugging
  • 2x bottom mounted solder pads for sonar


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